Bluedio TN (Turbine) Active Noise Cancelling Earbuds Neckband Earphones, Bluetooth 4.2 Wireless Sports Headsets Magnetic Sweatproof with Mic (Black) Note: original Bluedio TN sold by" Bluedio". It is NOT a professional ANC earphone, if you are more CARING about noise reduction rather than the sound quality, It not the best choice for you. Sport headphones Bluedio T energy headphones adopt two mics to eliminate the low-frequency noise in your life, with a water-resistant and durable design, Bluedio TN wireless earphones prevent against sweat and moisture damage. It is the best choice for use while running, exercising, jogging, and biking. Magnetic design built-in magnets let you attach the two headphones together and prevent the headphones from sliding off or cable tangle when not in use, just hang around your neck like a necklace. Comfortable wearing different from the common Bluetooth neckband headphone, the buttons of t energy are on the right to balance the left and right sides. This design combines the ergonomic Theory, so that users are able to have a more wonderful wearing experience. 13mm drivers and long battery life t energy Bluetooth headsets adopt the 13mm large diaphragm to make the bass powerful and flexible. Using Bluetooth 4. 2 program to reduce power consumption, t energy in-ear earphones enable music for 12 hours. The large capacity battery brings you a long-lasting user experience. warrantybludio provides a 3-month free replacement, one-year Warranty, any questions about this item, Just email us. Driver units: 13mm Bluetooth version: V4.2 Standby time: up to 250 hours Bluetooth music/call time: up to 12 hours Fully charged time: about 1.5 hours Pure ANC time: about 9 hours Bluetooth operating range : up to 10m (free space) 1 x T energy headphone 1 x TYPE-Ccharging cable 1 x User manual 3 x Ear tips (S, M, L)